CN103546884B - Machine type communication system, and method and devices for transmitting data of machine type communication system - Google Patents

Machine type communication system, and method and devices for transmitting data of machine type communication system Download PDF

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Publication number
CN103546884B
CN103546884B CN201210237774.7A CN201210237774A CN103546884B CN 103546884 B CN103546884 B CN 103546884B CN 201210237774 A CN201210237774 A CN 201210237774A CN 103546884 B CN103546884 B CN 103546884B
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mtc
iwf
behalf
sent
message
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CN103546884A (en
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王胡成
艾明
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Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/10Mobility data transfer between location register and external networks

Abstract

An embodiment of the invention discloses a machine type communication (MTC) system, and a method and devices for transmitting data of the machine type communication system, and relates to the field of wireless communication. The machine type communication system, the method and the devices are used for reducing signaling interaction among different public land mobile networks (PLMN) so as to save signaling resources. The machine type communication system, the method and the devices have the advantages that an original MTC internetworking function (MTC-IWF) server in a home public land mobile network (HPLMN) accesses proxy MTC-IWF server in visited public land mobile networks VPLMN, so that the data can be transmitted among the original MTC internetworking function MTC-IWF server and core network control devices in the VPLMN, establishment and maintenance on connections among the original MTC-IWF server in the HPLMN and the various core network control devices in the VPLMN can be omitted, signaling interaction among the different PLMN is reduced, and the signaling resources can be saved.

Description

Machine type communication system and its data transmission method and equipment
Technical field
The present invention relates to wireless communication field, more particularly, to a kind of machine type communication system and its data transmission method and set Standby.
Background technology
At present in third generation collaborative project (third generation partnership project, 3gpp) network rack Machine type communication (machine type communications, mtc) framework, wherein service capability server is introduced in structure (services capability server, scs) increased new node and 3gpp core net between is mtc interlink server (interworking function, mtc-iwf), the Main Function of mtc-iwf is to mtc server (server) shielding The topological structure of 3gpp network, provides the interface with 3gpp network.
The framework of mtc system as shown in figure 1, scs only with local public land mobile network (home public land Mobile network, hplmn) mtc-iwf have connection, that is, mtcsp interface is connecing of the mtc-iwf of scs and hplmn Mouthful.The mtc-iwf of hplmn and visited Public Land mobile network (visited public land mobile network, Vplmn service gprs supporting node (serving gprs support node, sgsn)), Mobility Management Entity (mobility management entity, mme), mobile services switching centre (mobile services switching Center, msc) between there may be roaming interface t5a, t5b, t5c.In Fig. 1, ue is terminal (user equipment), ran For Radio Access Network (radio access network), s-gw is gateway (serving gateway), ip-sm-gw For ip short messaging gateway (ip-short message-gateway), smc-sc/gmsc/iwmsc is in Short Message Service business The heart/gateway media switching centre/interoperability media exchange center, sme is Short Message Entity (short message entity), Cdf is charging data function entity (charging data function), and cgf is charging gateway function body (charging Gateway function), hss is home signature user server (home subscriber server), and ggsn is gateway Gprs supporting node (gateway gprs support node), p-gw is packet data gateway (packet data Network-gateway), as is application server (application server).
In 3gpp ts23.682 specification under roaming scence based on t4 interface realize triggering terminal flow process define as Draw a conclusion, as shown in Fig. 2 being described in detail below:
Step 1, scs are needing triggering terminal, so that terminal and network side are set up when communicating to connect, if scs does not have The contact details of mtc-iwf, then the outer logo of using terminal is from name server (directory name Service, dns) inquire about ip address and the port numbers obtaining mtc-iwf.
Step 2, scs send terminal triggering request to mtc-iwf, comprise terminal in this terminal triggering request The information such as outer logo, life cycle, priority and scs id.
Step 3, mtc-iwf check whether the whether authorized transmission triggering message of scs and scs ask beyond submitting to trigger The quota asked or speed.If the inspection failure of mtc-iwf, return error reporting and stop flow process.
Step 4, mtc-iwf send user information request (subscriber information request) to hss and disappear Breath, sends triggering message to check whether scs is authorized to counterpart terminal, and obtains the imsi of terminal and the service that terminal is current The mark of node (serving node).
Step 5, hss send user profile response (subscriber information response) message to scs. If the reason in user profile response message (cause) value instruction scs do not allow to counterpart terminal send triggering message or There is no effective CAMEL-Subscription-Information, then mtc-iwf transmission failed message to scs and stops flow process.
Step 6a, mtc-iwf selects the transmission means of triggering message, if selected for t5 terminal trigger message transmission side Formula, then mtc-iwf execution t5 terminal trigger message transfer process.
If the failure of step 6b t5 terminal trigger message transfer process, or select t4 terminal trigger message transmission means, then Mtc-iwf executes t4 terminal trigger message transfer process.
Step 7, mtc-iwf to scs send terminal triggering report, terminal triggering report in the reason value indicate trigger request Accepted, be transmitted or bust thiss.
Step 8, terminal receive terminal triggering (device trigger) message when, according to the triggering load in this message The content execution certain operations in (trigger payload) domain, include initiating at once or after a while and scs or application server (as) Communication process.
It can be seen that, in prior art, when ue is in roaming state, if as needs to trigger ue, as can be by scs to hplmn Mtc-iwf send terminal triggering request, when terminal triggering request reach mtc-iwf after, mtc-iwf pass through inquiry Hss obtains the current service node of terminal, is then sent terminal trigger message by service node, now needs Set up the connection of t5a/t5b/t5c interface between the sgsn/mme/msc of mtc-iwf and vplmn of hplmn, so can cause with Lower 2 points of problems:
The mtc-iwf of first, hplmn needs to set up and safeguard the company and the too many sgsn/mme/msc of vplmn between Connect, cause the expense of the signaling of the mtc-iwf of hplmn and resource larger.
Second, after the mtc-iwf of hplmn triggers ue failure by certain service node of vplmn, the service of this vplmn Node needs failed message is passed back the mtc-iwf of hplmn, then mtc-iwf just can retry by vplmn other Serving node carries out the triggering of terminal, so causes between different plmn frequently Signalling exchange, wastes signal resource.
Content of the invention
The embodiment of the present invention provides a kind of machine type communication system and its data transmission method and equipment, for reducing difference Signalling exchange between plmn, to save signal resource.
A kind of machine type mtc communication system, this system includes:
It is arranged on the service capability server scs of local public land mobile network hplmn and former mtc interlink server Mtc-iwf, and be arranged on visited Public Land mobile network vplmn act on behalf of mtc-iwf and core network control equipment;Its In, described former mtc-iwf is connected with described scs and the described mtc-iwf that acts on behalf of, described act on behalf of mtc-iwf also with described core net Control device is connected;
Described former mtc-iwf, for described acting on behalf of mtc- by receiving to be sent to from the downstream message of described scs iwf;It is sent to described scs by receiving from the described upstream message acting on behalf of mtc-iwf;
Described act on behalf of mtc-iwf, for the downstream message receiving from described former mtc-iwf is sent to described core Heart network control control equipment;It is sent to described former mtc-iwf by receiving from the upstream message of described core network control equipment;
Described core network control equipment, for sending out receiving from the described downstream message acting on behalf of mtc-iwf Go;The upstream message that the terminal receiving is sent is sent to described acts on behalf of mtc-iwf.
A kind of former mtc-iwf, this former mtc-iwf includes:
Downlink transfer unit, for receiving the downstream message from scs, is sent to and acts on behalf of mtc-iwf;This is former Mtc-iwf is the mtc-iwf arranging in the hplmn of terminal, and described agency in the vplmn that mtc-iwf is currently located for terminal sets The mtc-iwf putting;
Uplink unit, for by receive be sent to from the described upstream message acting on behalf of mtc-iwf described scs.
One kind acts on behalf of mtc-iwf, and this is acted on behalf of mtc-iwf and includes:
Downlink transfer unit, for by receive from the downstream message of former mtc-iwf be sent to core net control set Standby;Described former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal, and this acts on behalf of what mtc-iwf was currently located for terminal The mtc-iwf of setting in vplmn;
Uplink unit, for by receive be sent to from the upstream message of core network control equipment described former mtc-iwf.
A kind of core network control equipment, this core network control equipment includes:
Downlink transfer unit, for sending the downstream message receiving from acting on behalf of mtc-iwf;Described agency The mtc-iwf of setting in the vplmn that mtc-iwf is currently located for terminal;
Uplink unit, the upstream message for sending the terminal receiving is sent to described acts on behalf of mtc-iwf.
A kind of data transmission method under roaming scence, the method includes:
The former mtc-iwf being arranged in hplmn will receive the downstream message from scs, be sent to and act on behalf of mtc- iwf;The described mtc-iwf acting on behalf of setting in the vplmn that mtc-iwf is currently located for terminal;And,
Described former mtc-iwf is sent to described scs from the described upstream message acting on behalf of mtc-iwf by receiving.
A kind of data transmission method under roaming scence, the method includes:
The downstream message receiving from former mtc-iwf is sent to core by the mtc-iwf that acts on behalf of being arranged in vplmn Network control control equipment;Described former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal;
Described act on behalf of mtc-iwf and be sent to described former mtc- from the upstream message of core network control equipment by receiving iwf.
A kind of data transmission method under roaming scence, the method includes:
The downstream message receiving from acting on behalf of mtc-iwf is sent by core network control equipment;Described agency The mtc-iwf of setting in the vplmn that mtc-iwf is currently located for terminal;
The upstream message that the terminal receiving sends is sent to and described acts on behalf of mtc-iwf by described core network control equipment.
In scheme provided in an embodiment of the present invention, vplmn increases setting and acts on behalf of mtc-iwf, the former mtc- in hplmn By acting on behalf of the core network control equipment that downstream message is sent in vplmn by mtc-iwf, the core net in vplmn controls iwf Upstream message is sent to former mtc-iwf by acting on behalf of mtc-iwf by equipment, namely the former mtc-iwf in hplmn passes through agency Core network control equipment in mtc-iwf and vplmn carry out data transmission it is seen that the former mtc-iwf in hplmn do not need with Each core network control equipment in vplmn is set up and is safeguarded and connects, thus decreasing the Signalling exchange between different plmn, saves Signal resource.
Brief description
Fig. 1 is mtc system architecture schematic diagram of the prior art;
Fig. 2 is terminal trigger flow schematic diagram of the prior art;
Fig. 3 is mtc system structure diagram provided in an embodiment of the present invention;
Fig. 4 is the structural representation of former mtc-iwf provided in an embodiment of the present invention;
Fig. 5 is the structural representation acting on behalf of mtc-iwf provided in an embodiment of the present invention;
Fig. 6 is the structural representation of core network control equipment provided in an embodiment of the present invention;
Fig. 7 is the data transfer flow process schematic diagram of former mtc-iwf side provided in an embodiment of the present invention;
Fig. 8 is the data transfer flow process schematic diagram acting on behalf of mtc-iwf side provided in an embodiment of the present invention;
Fig. 9 is the data transfer flow process schematic diagram of core network control equipment side provided in an embodiment of the present invention.
Specific embodiment
In order to reduce the Signalling exchange between different plmn, to save signal resource, the embodiment of the present invention provides a kind of mtc Communication system.In the system, vplmn increases setting and acts on behalf of mtc-iwf, the mtc-iwf in hplmn is that former mtc-iwf leads to Cross and act on behalf of mtc-iwf, carry out data transmission with the core network control equipment in vplmn.
Referring to Fig. 3, mtc communication system provided in an embodiment of the present invention, comprising: be arranged on the scs30 and former mtc- of hplmn Iwf31, and be arranged on vplmn act on behalf of mtc-iwf31 and core network control equipment 33;Wherein, former mtc-iwf31 with Scs30 is connected with acting on behalf of mtc-iwf32, act on behalf of mtc-iwf32 also with core network control equipment 33 and Short Message Service Center (example As smc-sc/gmsc/iwmsc) it is connected;Herein, hplmn is the plmn of endpoint registration, and vplmn is currently located for terminal plmn.Specific:
Former mtc-iwf31, for by receive from scs30, need the downstream message being sent to terminal to be sent to Act on behalf of mtc-iwf32;The upstream message receiving from acting on behalf of mtc-iwf is sent to scs;
Act on behalf of mtc-iwf32, for being sent to core net control from the downstream message of former mtc-iwf31 by receiving Equipment 33;It is sent to former mtc-iwf31 by receiving from the upstream message of core network control equipment 33;
Core network control equipment 33, for sending the downstream message receiving from acting on behalf of mtc-iwf32;Will The upstream message that the terminal receiving sends is sent to acts on behalf of mtc-iwf32.Here, core network control equipment bag can include One or more of msc, mme, sgsn.
Further, this system also includes the home signature user server (hss) 34 being connected with former mtc-iwf31;
Accordingly, former mtc-iwf31 is additionally operable to: by receive from scs30, need to be sent to the descending of terminal Message is sent to before acting on behalf of mtc-iwf32, obtains the information of the service node of this terminal from hss34, according to the service obtaining The information of node judges whether this terminal is in roaming state, when being judged as YES, downstream message is sent to and acts on behalf of mtc- Iwf32, when being judged as NO, sends downstream message according to existing procedure.It should be noted that the service node of terminal is terminal One or more of plmn being currently located core network control equipment;This terminal is judged according to the information of the service node obtaining The method whether being in roaming state is: if the service node of this terminal is the core network control equipment of hplmn, this terminal is not It is in roaming state, otherwise, this terminal is in roaming state.
Further, former mtc-iwf31 is additionally operable to: before being sent to downstream message and acting on behalf of mtc-iwf32, according to obtaining The information of the service node obtaining, searches information (the such as address letter acting on behalf of mtc-iwf serving this service node in vplmn Breath), and according to the information finding, downstream message is sent to and acts on behalf of mtc-iwf32.Here, according to the service node obtaining Information, searches the information acting on behalf of mtc-iwf serving this service node in vplmn, can be specifically to search vplmn from dns In serve the information acting on behalf of mtc-iwf of this service node, now need in advance in dns configuration service each in vplmn The information acting on behalf of mtc-iwf of core network control equipment;Or or search in vplmn from local configuration information Serve the information acting on behalf of mtc-iwf of this service node, now need to serve each core in vplmn locally configured in advance The information acting on behalf of mtc-iwf of network control control equipment.
Further, former mtc-iwf31 is additionally operable to: before downstream message be sent to acting on behalf of mtc-iwf32, using as The information (such as address information) of the core network control equipment of the service node of terminal, carries in downstream message;
Accordingly, act on behalf of mtc-iwf32 to be additionally operable to: the downstream message receiving from former mtc-iwf31 is being sent Information (the such as address letter of core network control equipment before core network control equipment 33, is obtained by parsing downstream message Breath), downstream message is sent to by core network control equipment 33 according to the information that parsing obtains.
Further, core network control equipment 33 is additionally operable to: is sent in the upstream message sending the terminal receiving Before acting on behalf of mtc-iwf32, international mobile subscriber identification code (imsi) according to this terminal carrying in upstream message, judging should Whether terminal is in roaming state, when being judged as YES, upstream message is sent to and acts on behalf of mtc-iwf32, when being judged as NO Send upstream message according to existing procedure.
Further, core network control equipment 33 is additionally operable to: before upstream message be sent to acting on behalf of mtc-iwf32, Information (the such as address letter acting on behalf of mtc-iwf serving this core network control equipment is searched from local configuration information Breath), and according to the information finding, upstream message is sent to and acts on behalf of mtc-iwf32.
Further, act on behalf of mtc-iwf32 to be additionally operable to: disappearing receiving from the up of core network control equipment 33 Before breath is sent to former mtc-iwf31, according to the relevant information carrying in upstream message, search setting in the hplmn of terminal The information of former mtc-iwf, and described upstream message is sent to by described former mtc-iwf31 according to the information finding;Here, root According to the relevant information carrying in upstream message, search the information of the former mtc-iwf of setting in the hplmn of terminal, can be specifically Outer logo according to the terminal carrying in upstream message or other information (the total quality domain name of such as mtc-iwf (fqdn) information of the former mtc-iwf of setting the hplmn of terminal), is searched from dns, or, look into from local configuration information Look for the information of the former mtc-iwf of setting in the hplmn of terminal.
Act on behalf of mtc-iwf32 to be used for: by the interface of acting on behalf of foundation between mtc-iwf32 and former mtc-iwf31 (for example Tpm interface), it is sent to former mtc-iwf31 by receiving from the upstream message of core network control equipment 33;This interface be Former mtc-iwf31 sends, to acting on behalf of mtc-iwf32, the interface set up during downstream message.
Downstream message in the present invention can be terminal trigger message etc.;Upstream message can be to this terminal trigger message Terminal triggering report etc..
Act on behalf of mtc-iwf32 receive terminal triggering report after, if according to this terminal triggering report judge terminal triggering The bust thiss of message, then be not sent to the triggering report of this terminal the former mtc-iwf31 in hplmn, but reselect it His core network control equipment, and terminal trigger message is sent, thus keeping away by the core network control equipment reselecting Exempted from the former mtc-iwf31 triggering report of the terminal of bust thiss being sent in hplmn, further reduce different plmn it Between signalling, save signal resource.If judge the transmission success of terminal trigger message according to the triggering report of this terminal, The triggering report of this terminal is sent to the former mtc-iwf31 in hplmn.
Referring to Fig. 4, the embodiment of the present invention provides a kind of former mtc-iwf, this former mtc-iwf to include:
Downlink transfer unit 40, for receiving from downstream message scs, needing to be sent to terminal, sends Acted on behalf of mtc-iwf;This former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal, acts on behalf of mtc-iwf for the current institute of terminal Vplmn in setting mtc-iwf;
Uplink unit 41, for being sent to scs by the upstream message receiving from acting on behalf of mtc-iwf.
Further, this former mtc-iwf also includes:
Roaming judging unit 42, before downstream message is sent to and acts on behalf of mtc-iwf by downlink transfer unit, obtains from hss Obtain the information of the service node of terminal, judge whether terminal is in roaming state according to the information of the service node obtaining;
Described downlink transfer unit 40 is used for: in when being judged as YES of judging unit of roaming, downstream message is sent to generation Reason mtc-iwf;When being judged as NO, send downstream message according to existing procedure.It should be noted that the service node of terminal is One or more of the plmn that terminal is currently located core network control equipment;Information according to the service node obtaining judges should The method whether terminal is in roaming state is: if the service node of this terminal is the core network control equipment of hplmn, this is eventually End is not in roaming state, and otherwise, this terminal is in roaming state.
Further, this former mtc-iwf also includes:
Information searching unit 43, before downstream message being sent to and acts on behalf of mtc-iwf in downlink transfer unit, according to The information of the service node that roaming judging unit obtains, searches the letter acting on behalf of mtc-iwf serving this service node in vplmn Breath;Here, the information according to the service node obtaining, searches the letter acting on behalf of mtc-iwf serving this service node in vplmn Breath, can be specifically to search, from dns, the information acting on behalf of mtc-iwf serving this service node vplmn;Or it is also possible to It is to search the information acting on behalf of mtc-iwf serving this service node in vplmn from local configuration information.
Accordingly, downlink transfer unit 40 is used for: the information being found according to information searching unit, and downstream message is sent Acted on behalf of mtc-iwf.
Further, downlink transfer unit 40 is additionally operable to:
Before downstream message is sent to acting on behalf of mtc-iwf, the core net of the service node as terminal is controlled and sets Standby information, carries in downstream message, for follow-up downstream message transmission.
Referring to Fig. 5, the embodiment of the present invention provides one kind to act on behalf of mtc-iwf, and this is acted on behalf of mtc-iwf and includes:
Downlink transfer unit 50, for being sent to core net control from the downstream message of former mtc-iwf by receiving Equipment;Former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal, acts on behalf of in the vplmn that mtc-iwf is currently located for terminal The mtc-iwf of setting;
Uplink unit 51, for being sent to former mtc- from the upstream message of core network control equipment by receiving iwf.
Further, this is acted on behalf of mtc-iwf and also includes:
Message parsing unit 52, for sending out the downstream message receiving from former mtc-iwf in downlink transfer unit The information of core network control equipment before giving core network control equipment, is obtained by parsing downstream message;
Accordingly, downlink transfer unit 50 is used for: the information being obtained according to message parsing unit parsing, and downstream message is sent out Give core network control equipment.
Further, this is acted on behalf of mtc-iwf and also includes:
Information searching unit 53, for disappearing receiving from the up of core network control equipment in uplink unit Before breath is sent to former mtc-iwf, according to the relevant information carrying in upstream message, search setting in the hplmn of this terminal The information of former mtc-iwf;Here, according to the relevant information carrying in upstream message, in the hplmn of lookup terminal, setting is former The information of mtc-iwf, can be specifically outer logo according to the terminal carrying in upstream message or other information (such as The fqdn of mtc-iwf), the information of the former mtc-iwf of setting the hplmn of terminal is searched from dns, or, from local configuration The information of the former mtc-iwf of setting in the hplmn of terminal is searched in information.Accordingly, uplink unit 51, for according to letter The information that breath searching unit finds, upstream message is sent to described former mtc-iwf.Or,
Uplink unit 51 is used for: the interface acting on behalf of foundation between mtc-iwf and former mtc-iwf by this, will connect The upstream message from core network control equipment receiving is sent to former mtc-iwf;This interface is to this agency in former mtc-iwf Mtc-iwf sends the interface set up during downstream message.
When the upstream message that the uplink unit 51 acting on behalf of mtc-iwf receives is for terminal triggering report, if according to The triggering report of this terminal judges the bust thiss of terminal trigger message, then the triggering report of this terminal is not sent in hplmn Former mtc-iwf, but reselect other core network control equipment, and by the core network control equipment that reselects by terminal Triggering message sends, thus avoiding the former mtc-iwf being sent to the terminal triggering report of bust thiss in hplmn, Further reduce the signalling between different plmn, save signal resource.If being judged eventually according to the triggering report of this terminal The transmission success of end triggering message, then be sent to the former mtc-iwf in hplmn by the triggering report of this terminal.
Referring to Fig. 6, the embodiment of the present invention provides a kind of core network control equipment, and this core network control equipment includes:
Downlink transfer unit 60, for sending out the downstream message receiving from acting on behalf of mtc-iwf according to existing method See off;Act on behalf of the mtc-iwf of setting in the vplmn that mtc-iwf is currently located for terminal;
Uplink unit 61, the upstream message for sending the terminal receiving is sent to acts on behalf of mtc-iwf.
Further, this core network control equipment also includes:
Roaming judging unit 62, for be sent in the upstream message sending the terminal receiving act on behalf of mtc-iwf it Before, according to the imsi of this terminal carrying in upstream message, judge whether terminal is in roaming state;
Uplink unit 61 is used for: in when being judged as YES of judging unit of roaming, upstream message is sent to agency Mtc-iwf, sends upstream message when being judged as NO according to existing procedure.
Further, this core network control equipment also includes:
Information searching unit 63, before being sent to upstream message and act on behalf of mtc-iwf in uplink unit, from this The information acting on behalf of mtc-iwf serving this core network control equipment is searched in the configuration information on ground;
Accordingly, uplink unit 61 is used for: the information being found according to information searching unit, and upstream message is sent Acted on behalf of mtc-iwf.
Referring to Fig. 7, the embodiment of the present invention provides the data transmission method being directed under the roaming scence of former mtc-iwf, including Following steps:
Step 70: the former mtc-iwf being arranged in hplmn will receive the downstream message from scs, be sent to agency mtc-iwf;Act on behalf of the mtc-iwf of setting in the vplmn that mtc-iwf is currently located for terminal;
Step 71: former mtc-iwf is sent to described scs from the upstream message acting on behalf of mtc-iwf by receiving.
It should be noted that not having strict time sequencing between step 70 and step 71, namely step 71 can be in step Execution after rapid 70, it is also possible to execute before step 70, be can also be and executed with step 70 simultaneously.
Preferably, in step 70, under the former mtc-iwf in the hplmn being arranged on terminal will receive from scs Row message, is sent to before acting on behalf of mtc-iwf, and former mtc-iwf obtains the information of the service node of terminal from hss, according to acquisition The information of service node judge whether terminal is in roaming state;When judging that terminal is in roaming state, by downstream message It is sent to and act on behalf of mtc-iwf.
Specifically, in step 70, downstream message is sent to and acts on behalf of mtc-iwf, be implemented as follows: according to the clothes obtaining The information of business node, searches the information acting on behalf of mtc-iwf serving this service node in vplmn;According to the information finding, Downstream message is sent to and acts on behalf of mtc-iwf.
Preferably, before downstream message is sent to acting on behalf of mtc-iwf, using the core net of the service node as terminal The information of control device, carries in downstream message.
Referring to Fig. 8, the embodiment of the present invention provides the data transmission method being directed under the roaming scence acting on behalf of mtc-iwf, bag Include following steps:
Step 80: the downstream message receiving from former mtc-iwf is sent out by the mtc-iwf that acts on behalf of being arranged in vplmn Give core network control equipment;Former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal;
Step 81: act on behalf of mtc-iwf by receiving and be sent to former mtc- from the upstream message of core network control equipment iwf.
It should be noted that not having strict time sequencing between step 80 and step 81, namely step 81 can be in step Suddenly execution after 80s, it is also possible to execute before step 80, be can also be and executed with step 80 simultaneously.
Specifically, the downstream message receiving from former mtc-iwf is sent to core acting on behalf of mtc-iwf in step 80 The information of core network control equipment before heart network control control equipment, is obtained by parsing downstream message;The information being obtained according to parsing, Downstream message is sent to core network control equipment.
Specifically, act on behalf of mtc-iwf in step 81 to send the upstream message receiving from core network control equipment To former mtc-iwf, it is implemented as follows: act on behalf of mtc-iwf according to the relevant information carrying in upstream message, search this terminal The information of the former mtc-iwf of setting in hplmn;According to the information finding, upstream message is sent to described former mtc-iwf; Or,
Act on behalf of mtc-iwf and the interface of foundation between mtc-iwf and former mtc-iwf is acted on behalf of by this, by coming of receiving It is sent to former mtc-iwf from the upstream message of core network control equipment;This interface is to act on behalf of mtc- in described former mtc-iwf to this Iwf sends the interface set up during downstream message.
When acting on behalf of the upstream message that mtc-iwf receives for terminal triggering report, if report is triggered according to this terminal sentencing The bust thiss of disconnected terminal trigger message, then be not sent to the former mtc-iwf in hplmn by the triggering report of this terminal, but weight Newly select other core network control equipment, and by the core network control equipment reselecting, terminal trigger message is sent out Going, thus avoiding the former mtc-iwf being sent to the terminal triggering report of bust thiss in hplmn, further reducing not With the signalling between plmn, save signal resource.If judge the biography of terminal trigger message according to the triggering report of this terminal Defeated success, then be sent to the former mtc-iwf in hplmn by the triggering report of this terminal.
Referring to Fig. 9, the embodiment of the present invention provides for the data transmission method under the roaming scence of core network control equipment, Comprise the following steps:
Step 90: the downstream message receiving from acting on behalf of mtc-iwf is sent by core network control equipment;Agency The mtc-iwf of setting in the vplmn that mtc-iwf is currently located for terminal;
Step 91: the upstream message that the terminal receiving sends is sent to and acts on behalf of mtc-iwf by core network control equipment.
Preferably, the upstream message that the terminal receiving sends is sent to agency in core network control equipment in step 91 Before mtc-iwf, according to the imsi of this terminal carrying in upstream message, judge whether terminal is in roaming state;Judging When terminal is in roaming state, upstream message is sent to and acts on behalf of mtc-iwf.
Specifically, in step 91, the upstream message that the terminal receiving sends is sent to agency by core network control equipment Mtc-iwf, is implemented as follows: search from local configuration information serve this core network control equipment act on behalf of mtc- The information of iwf;According to the information finding, upstream message is sent to and acts on behalf of mtc-iwf.
Downstream message be terminal trigger message, upstream message be to the triggering report of the terminal of terminal trigger message, specifically Agreement flow process is as follows:
Step one, the former mtc-iwf of hplmn receive terminal trigger message from tsp interface, according to prior art in hss Find the information of the service node of current ue, and determine whether ue is in roaming state according to the information finding;
Step 2, when former mtc-iwf determines that ue is in roaming state, searched in vplmn according to the id of service node and take It is engaged in the information acting on behalf of mtc-iwf of this service node;
Terminal trigger message is passed to and is acted on behalf of mtc-iwf by step 3, former mtc-iwf;
Step 4, act on behalf of mtc-iwf according to existing mtc-iwf trigger ue method send terminal trigger message;
Step 5, act on behalf of mtc-iwf the terminal receiving from sgsn/mme/msc triggering report is sent to the mtc- of hplmn iwf.
Embodiment one:
Specifically comprise the following steps that
Step one, on dns be this plmn in core network control equipment be sgsn/mme/msc Configuration Agent mtc-iwf Information;
Step 2, the former mtc-iwf of hplmn receive terminal trigger message from tsp interface, according to prior art in hss Find the information of the service node of current ue, and determine whether ue is in roaming state according to the information finding;
Step 3, when former mtc-iwf determines that ue is in roaming state, searched in vplmn according to the id of service node and take It is engaged in the information acting on behalf of mtc-iwf of this service node;
Step 4, former mtc-iwf will carry the terminal trigger message of the information of service node, be passed to by tpm interface Act on behalf of mtc-iwf;
Step 5, act on behalf of mtc-iwf according to existing mtc-iwf trigger ue method send terminal trigger message;
Step 6, act on behalf of mtc-iwf by the terminal receiving from sgsn/mme/msc trigger report, by the tpm of foundation Interface receives the former mtc-iwf of the hplmn of terminal trigger message before passing to.
Embodiment two:
Step one, with embodiment one step one-step 5;
Step 2, the outside of the terminal acted on behalf of during mtc-iwf reports according to the terminal triggering receiving from sgsn/mme/msc The former mtc-iwf of the hplmn of mark or other information (for example: the fqdn of mtc-iwf) lookup terminal, and terminal is triggered report Announcement passes to this former mtc-iwf.
To sum up, the beneficial effect comprise that
In scheme provided in an embodiment of the present invention, vplmn increases setting and acts on behalf of mtc-iwf, the former mtc- in hplmn By acting on behalf of the core network control equipment that downstream message is sent in vplmn by mtc-iwf, the core net in vplmn controls iwf Upstream message is sent to former mtc-iwf by acting on behalf of mtc-iwf by equipment, namely the former mtc-iwf in hplmn passes through agency Core network control equipment in mtc-iwf and vplmn carry out data transmission it is seen that the former mtc-iwf in hplmn do not need with Each core network control equipment in vplmn is set up and is safeguarded and connects, thus decreasing the Signalling exchange between different plmn, saves Signal resource.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor instructing general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device The device of the function of specifying in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device with spy Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that counting On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one The step of the function of specifying in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprise these changes and modification.

Claims (26)

1. a kind of machine type communication mtc system is it is characterised in that this system includes:
It is arranged on the service capability server scs of local public land mobile network hplmn of terminal and former mtc interlink server Mtc-iwf, and be arranged on act on behalf of mtc-iwf and the core net of the visited Public Land mobile network vplmn of terminal and control and set Standby;Wherein, described former mtc-iwf is connected with described scs and the described mtc-iwf that acts on behalf of, described act on behalf of mtc-iwf also with described core Heart network control control equipment is connected;
Described former mtc-iwf, for described acting on behalf of mtc-iwf by receiving to be sent to from the downstream message of described scs;Will Receive is sent to described scs from the described upstream message acting on behalf of mtc-iwf;
Described act on behalf of mtc-iwf, for the downstream message receiving from described former mtc-iwf is sent to described core net Control device;It is sent to described former mtc-iwf by receiving from the upstream message of described core network control equipment;
Described core network control equipment, for sending receiving from the described downstream message acting on behalf of mtc-iwf;Will The upstream message that the terminal receiving sends is sent to described acts on behalf of mtc-iwf;
Wherein, described former mtc-iwf is additionally operable to:
Described downstream message is sent to described act on behalf of mtc-iwf before, using the core of the service node as described terminal The information of network control control equipment, carries in described downstream message;
The described mtc-iwf that acts on behalf of is additionally operable to:
To receive before the downstream message of described former mtc-iwf is sent to described core network control equipment, passing through Parse the information that described downstream message obtains core network control equipment, according to the information that parsing obtains, described downstream message is sent To described core network control equipment.
2. the system as claimed in claim 1 is it is characterised in that this system also includes the ownership being connected with described former mtc-iwf Assigned user server hss;
Described former mtc-iwf is additionally operable to: described is acting on behalf of mtc- by receiving to be sent to from the downstream message of described scs Before iwf, obtain the information of the service node of described terminal from described hss, institute is judged according to the information of the service node obtaining State whether terminal is in roaming state, when being judged as YES, described downstream message is sent to and described acts on behalf of mtc-iwf.
3. system as claimed in claim 2 is it is characterised in that described former mtc-iwf is additionally operable to:
Described downstream message is sent to described act on behalf of mtc-iwf before, according to obtain service node information, search Serve the information acting on behalf of mtc-iwf of this service node in vplmn, and according to the information finding, described downstream message is sent out Give and described act on behalf of mtc-iwf.
4. the system as claimed in claim 1 is it is characterised in that described core network control equipment is additionally operable to:
The upstream message that the terminal receiving is sent be sent to described act on behalf of mtc-iwf before, according to described upstream message In the international mobile subscriber identification code imsi of this terminal that carries, judge whether described terminal is in roaming state, be judged as When being, described upstream message is sent to and described acts on behalf of mtc-iwf.
5. system as claimed in claim 4 is it is characterised in that described core network control equipment is additionally operable to:
Described upstream message is sent to described act on behalf of mtc-iwf before, search from local configuration information and serve this The information acting on behalf of mtc-iwf of core network control equipment, and according to described upstream message is sent to by the information finding Act on behalf of mtc-iwf.
6. the system as claimed in claim 1 is it is characterised in that the described mtc-iwf that acts on behalf of is additionally operable to:
Will receive before the upstream message of described core network control equipment is sent to described former mtc-iwf, according to The relevant information carrying in described upstream message, searches the information of the former mtc-iwf of setting in the hplmn of described terminal, and root It is investigated that described upstream message is sent to described former mtc-iwf by the information finding.
7. the system as claimed in claim 1 is it is characterised in that the described mtc-iwf that acts on behalf of is used for:
By the described interface acting on behalf of foundation between mtc-iwf and described former mtc-iwf, will receive from described core The upstream message of network control control equipment is sent to described former mtc-iwf;Described interface is to described agency in described former mtc-iwf Set up during mtc-iwf transmission downstream message.
8. as described system arbitrary in claim 1-7 it is characterised in that described downstream message is terminal trigger message;Institute Stating upstream message is the terminal triggering report to described terminal trigger message.
9. a kind of former mtc-iwf is it is characterised in that this former mtc-iwf includes:
Downlink transfer unit, for receiving the downstream message from scs, is sent to and acts on behalf of mtc-iwf;This former mtc- Iwf be terminal hplmn in setting mtc-iwf, described act on behalf of in the vplmn that mtc-iwf is currently located for terminal arrange mtc-iwf;
Uplink unit, for being sent to described scs from the described upstream message acting on behalf of mtc-iwf by receiving;
Wherein, described downlink transfer unit is additionally operable to:
Described downstream message is sent to described act on behalf of mtc-iwf before, using the core of the service node as described terminal The information of network control control equipment, carries in described downstream message.
10. as claimed in claim 9 former mtc-iwf it is characterised in that this former mtc-iwf also includes:
Roaming judging unit, described downlink transfer unit described downstream message is sent to described act on behalf of mtc-iwf before, from Hss obtains the information of the service node of described terminal, judges whether described terminal is according to the information of the service node obtaining Roaming state;
Described downlink transfer unit is used for: in described when being judged as YES of judging unit of roaming, described downstream message is sent to Described act on behalf of mtc-iwf.
11. as claimed in claim 10 former mtc-iwf it is characterised in that this former mtc-iwf also includes:
Information searching unit, for described downlink transfer unit by described downstream message be sent to described act on behalf of mtc-iwf it Before, the information of the service node being obtained according to described roaming judging unit, search the agency serving this service node in vplmn The information of mtc-iwf;
Described downlink transfer unit is used for: the information being found according to described information searching unit, and described downstream message is sent Act on behalf of mtc-iwf to described.
12. one kind act on behalf of mtc-iwf it is characterised in that this acts on behalf of mtc-iwf includes:
Downlink transfer unit, for being sent to core network control equipment by the downstream message receiving from former mtc-iwf;Institute State the mtc-iwf of setting in the hplmn that former mtc-iwf is terminal, this is acted on behalf of in the vplmn that mtc-iwf is currently located for terminal The mtc-iwf of setting;
Uplink unit, for being sent to described former mtc- from the upstream message of core network control equipment by receiving iwf;
This is acted on behalf of mtc-iwf and also includes:
Message parsing unit, for sending the downstream message receiving from former mtc-iwf in described downlink transfer unit The information of core network control equipment before core network control equipment, is obtained by parsing described downstream message;
Described downlink transfer unit is used for: the information being obtained according to the parsing of described message parsing unit, and described downstream message is sent out Give core network control equipment.
13. act on behalf of mtc-iwf as claimed in claim 12 it is characterised in that this acts on behalf of mtc-iwf also includes:
Information searching unit, for receiving the upstream message from core network control equipment in described uplink unit Before being sent to described former mtc-iwf, according to the relevant information carrying in described upstream message, search in the hplmn of this terminal The information of the former mtc-iwf of setting;
Described uplink unit, for the information being found according to described information searching unit, described upstream message is sent To described former mtc-iwf.
14. act on behalf of mtc-iwf as claimed in claim 12 it is characterised in that described uplink unit is used for:
The interface acting on behalf of foundation between mtc-iwf and described former mtc-iwf by this, will receive from core net control The upstream message of equipment is sent to described former mtc-iwf;Described interface is to act on behalf of mtc-iwf in described former mtc-iwf to this to send out Send and set up during downstream message.
A kind of 15. core network control equipment are it is characterised in that this core network control equipment includes:
Downlink transfer unit, for sending the downstream message receiving from acting on behalf of mtc-iwf;Described act on behalf of mtc- The mtc-iwf of setting in the vplmn that iwf is currently located for terminal;Described downstream message is that the described mtc-iwf that acts on behalf of receives From the downstream message of former mtc-iwf, and, the described mtc-iwf that acts on behalf of is disappearing receiving from the descending of former mtc-iwf The information of core network control equipment before breath is sent to described core network control equipment, is obtained by parsing described downstream message, Described downstream message is sent to by described core network control equipment according to the information that parsing obtains;
Uplink unit, the upstream message for sending the terminal receiving is sent to described acts on behalf of mtc-iwf.
16. core network control equipment as claimed in claim 15 are it is characterised in that this core network control equipment also includes:
Roaming judging unit, for be sent in the upstream message sending the terminal receiving described act on behalf of mtc-iwf before, According to the international mobile subscriber identification code imsi of this terminal carrying in described upstream message, judge whether described terminal is in unrestrained Free state;
Described uplink unit is used for: in described when being judged as YES of judging unit of roaming, described upstream message is sent to Described act on behalf of mtc-iwf.
17. core network control equipment as claimed in claim 16 are it is characterised in that this core network control equipment also includes:
Information searching unit, for described uplink unit by described upstream message be sent to described act on behalf of mtc-iwf it Before, search the information acting on behalf of mtc-iwf serving this core network control equipment from local configuration information;
Described uplink unit is used for: the information being found according to described information searching unit, and described upstream message is sent Act on behalf of mtc-iwf to described.
Data transmission method under a kind of 18. roaming scences is it is characterised in that the method includes:
The former mtc-iwf being arranged in the hplmn of terminal will receive the downstream message from scs, be sent to and act on behalf of mtc- iwf;The described mtc-iwf acting on behalf of setting in the vplmn that mtc-iwf is currently located for terminal;And,
Described former mtc-iwf is sent to described scs from the described upstream message acting on behalf of mtc-iwf by receiving;
The method also includes:
Described downstream message is sent to described act on behalf of mtc-iwf before, using the core of the service node as described terminal The information of network control control equipment, carries in described downstream message.
19. methods as claimed in claim 18 will be it is characterised in that the former mtc-iwf in the hplmn being arranged on terminal will connect The downstream message from scs receiving, is sent to before acting on behalf of mtc-iwf, further includes: described former mtc-iwf obtains from hss Obtain the information of the service node of described terminal, judge whether described terminal is in roaming shape according to the information of the service node obtaining State;
Described former mtc-iwf will receive the downstream message from scs, be sent to and act on behalf of mtc-iwf, specifically include: sentence Described terminal of breaking is when being in roaming state, described downstream message is sent to and described acts on behalf of mtc-iwf.
20. methods as claimed in claim 19 are it is characterised in that described be sent to described downstream message described acts on behalf of mtc- Iwf, specifically includes:
According to the information of the service node obtaining, search the information acting on behalf of mtc-iwf serving this service node in vplmn; According to the information finding, described downstream message is sent to and described acts on behalf of mtc-iwf.
Data transmission method under a kind of 21. roaming scences is it is characterised in that the method includes:
It is arranged on acting on behalf of mtc-iwf and will receive the downstream message from former mtc-iwf in the vplmn that terminal is currently located It is sent to core network control equipment;Described former mtc-iwf is the mtc-iwf arranging in the hplmn of terminal;
Described act on behalf of mtc-iwf and be sent to described former mtc-iwf from the upstream message of core network control equipment by receiving;
Wherein, described act on behalf of mtc-iwf by receive from the downstream message of former mtc-iwf be sent to core net control set For before, further include: obtain the information of core network control equipment by parsing described downstream message;
Described act on behalf of mtc-iwf and be sent to core network control equipment from the downstream message of former mtc-iwf by receiving, specifically Including: the described mtc-iwf that acts on behalf of, according to parsing the information obtaining, described downstream message is sent to core network control equipment.
22. methods as claimed in claim 21 are it is characterised in that the described mtc-iwf that acts on behalf of will receive from core net The upstream message of control device is sent to described former mtc-iwf, specifically includes:
The described mtc-iwf that acts on behalf of, according to the relevant information carrying in described upstream message, searches setting in the hplmn of this terminal The information of former mtc-iwf;According to the information finding, described upstream message is sent to described former mtc-iwf.
23. methods as claimed in claim 21 are it is characterised in that the described mtc-iwf that acts on behalf of will receive from core net The upstream message of control device is sent to described former mtc-iwf, specifically includes:
Described act on behalf of the interface that mtc-iwf acts on behalf of foundation between mtc-iwf and described former mtc-iwf by this, will receive The upstream message from core network control equipment be sent to described former mtc-iwf;Described interface be described former mtc-iwf to This is acted on behalf of when mtc-iwf sends downstream message and sets up.
Data transmission method under a kind of 24. roaming scences is it is characterised in that the method includes:
The downstream message receiving from acting on behalf of mtc-iwf is sent by core network control equipment;Described act on behalf of mtc-iwf The mtc-iwf of setting in the vplmn being currently located for terminal;Described downstream message be described act on behalf of that mtc-iwf receives come From the downstream message of former mtc-iwf, and, the described mtc-iwf that acts on behalf of will receive the downstream message from former mtc-iwf The information of core network control equipment, root before being sent to described core network control equipment, is obtained by parsing described downstream message According to the information that parsing obtains, described downstream message is sent to described core network control equipment;
The upstream message that the terminal receiving sends is sent to and described acts on behalf of mtc-iwf by described core network control equipment.
25. methods as claimed in claim 24 are it is characterised in that send out the terminal receiving in described core network control equipment The upstream message going out is sent to described before acting on behalf of mtc-iwf, further includes: according to this end carrying in described upstream message The international mobile subscriber identification code imsi at end, judges whether described terminal is in roaming state;
Described core network control equipment by the upstream message that the terminal receiving sends be sent to described act on behalf of mtc-iwf, specifically Including: when judging that described terminal is in roaming state, described upstream message is sent to and described acts on behalf of mtc-iwf.
26. methods as claimed in claim 24 are it is characterised in that the terminal receiving is sent by described core network control equipment Upstream message be sent to described act on behalf of mtc-iwf, specifically include:
The information acting on behalf of mtc-iwf serving this core network control equipment is searched from local configuration information;According to lookup The information arriving, described upstream message is sent to and described acts on behalf of mtc-iwf.
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